Particulate In Stack Gases - Lab Method 23 Particulate In Stack Gases - Lab Method 23 https://www.tceq.texas.gov/downloads/compliance/investigations/assistance/tceq-lab-method-23.pdf/view https://www.tceq.texas.gov/@@site-logo/TCEQ-logo-header.png Particulate In Stack Gases - Lab Method 23 Particulate In Stack Gases - Lab Method 23 tceq-lab-method-23.pdf — 351.4 KB